Music apparatus with dynamic change of effects

摘要

A music effector apparatus is constructed for processing a digital audio signal to produce a music sound while imparting acoustic effects to the music sound by executing microprograms corresponding to the acoustic effects. In the music effector apparatus, a digital signal processor has a process capacity only sufficient to execute a limited number of microprograms in parallel to each other to create corresponding acoustic effects in production of the music sound. An operating panel is manually operable when changing the acoustic effects during the production of the music sound for setting an acoustic effect to a zero level so that the corresponding microprogram is made inactive, and for setting another acoustic effect to other level than the zero level so that the corresponding microprogram is made active. A controller controls the digital signal processor to execute one or more of the active microprograms within the limited number while skipping execution of the inactive microprogram to thereby achieve efficient use of the process capacity of the digital signal processor.